In this episode, I talk with ⁠Nikolaus West⁠, Co-Founder & CEO of Rerun; their team is building the data stack for Physical AI:

We get into the early days of Rerun: how an open-source visualization tool for multimodal data became widely adopted across robotics, spatial computing, and even inside companies like Apple and Meta. But that was just the start.

Now, they’re building a full-stack platform for logging, querying, and managing robotic-scale data, from raw logs to model training.

Niko shares his personal journey from business school in London to engineering in Sweden, to startups in retail, Kenya, and AR. Along the way, he learned the hard truth: physical AI teams are still flying blind when it comes to data. That pain turned into obsession, and obsession turned into Rerun.